IJBTT

Efficient Street Lighting

	International Journal of Computer Trends and Technology (IJCTT)
	© 2017 by IJCTT Journal
	Volume-48 Number-4
	Year of Publication : 2017
	Authors : Lilly RaffyCheerotha, Daniel Williams George, Rahul C D, Ranjith R
	DOI :  10.14445/22312803/IJCTT-V48P136

Lilly RaffyCheerotha, Daniel Williams George, Rahul C D, Ranjith R "Efficient Street Lighting". International Journal of Computer Trends and Technology (IJCTT) V48(4):196-199, June 2017. ISSN:2231-2803. www.ijcttjournal.org. Published by Seventh Sense Research Group.

Abstract -
Now days it seems that street lamp wastes a lot of power. Street lamps are needed for visibility in dark mainly during the night hours. The street lamps remain in on state even in off peak hours i.e. from 10 pm to 6 am. During these hours the lamp is in on state and power wastage occurs as there is less usage of lamps during these hours. This condition can be avoided by bringing the street lamp in dim mode and brought back to bright mode when human passes by using a sensor. This greatly helps in advancement of economy and efficiency. Design of new street light control system does not only achieve energy-saving power but also extend the service life of lighting equipment. Moreover, it is controllable, ease of maintenance. This circuit consists of dark activated sensor and connected to the Arduino UNO microcontroller. The output of microcontroller is given to relay switch where PIR sensor the brightness of the switch can be controlled. When the sunlight goes down the LDR sensor detect the presents of light then LDR send message to microcontroller rand lit up the light. Then the light will be in bright mode until the 10 pm, after 10pm the bulb changes to dim mode. Here the interrupts are working. If a human interruption occurs in this mode the interrupt is enabled and it goes to bright mode and remains for some time. When the sun rises then the LDR sense that and all the lights will be turned off automatically.

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Keywords
PIR sensor, Arduino UNO.